Rock-type control of Ni, Cr, and Co phytoavailability in ultramafic soils

Autor: Gildas Ratié, Cécile Quantin, Jakub Kierczak, Emmanuel Ponzevera, Artur Pędziwiatr, Jarosław Waroszewski
Přispěvatelé: Wroclaw Univ Environm & Life Sci, Inst Soil Sci & Environm Protect, Grunwaldzka 53, PL-50357 Wroclaw, Poland, Univ Wroclaw, Inst Geol Sci, Pl Maksa Borna 9, PL-50204 Wroclaw, Poland, Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Géosciences Paris Sud (GEOPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Géodynamique et enregistrement Sédimentaire - Geosciences Marines (GM-LGS), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), IFREMER, Ctr Brest, Unite Geosci Marines, F-29280 Plouzane, France
Rok vydání: 2017
Předmět:
Zdroj: Plant and Soil
Plant and Soil, Springer Verlag, 2018, 423 (1-2), pp.339-362. ⟨10.1007/s11104-017-3523-3⟩
Plant And Soil (0032-079X) (Springer), 2018-02, Vol. 423, N. 1-2, P. 339-362
ISSN: 1573-5036
0032-079X
Popis: Ultramafic soils constitute an extreme environment for plants because of specific physico-chemical properties and the presence of Ni, Cr, and Co. We hypothesized that type of ultramafic parent rock depending on their origin affects the composition of soils and plants. Therefore, phytoavailability of metals would be higher in soil derived from serpentinized peridotite compared to serpentinite because of differences in susceptibility of minerals to weathering. Based on DTPA-CaCl2 extractions, we noted that soil derived from the serpentinized peridotite is characterized by a higher phytoavailability of Ni compared to soil derived from the serpentinite. On the contrary, plant species growing on soil derived from the serpentinite contain higher concentrations of metals. Our study suggests that the metal uptake by plants is controlled by the mineral composition of parent rocks, which results from both their original magmatic composition and later metamorphic processes. Chemical extractions show that the phytoavailability of Ni and Co is higher in soil derived from the serpentinized peridotite than the serpentinite. Surprisingly, plants growing on the soil derived from the serpentinite contain higher levels of metals compared to these from the serpentinized peridotite derived soil. This contrasting behavior is due to higher abundances of Ca and Mg, not only Ni and Co, in soil derived from the serpentinized peridotite as compared to those in the soil derived from the serpentinite. Calcium and Mg are favored by plants and preferably fill the available sites, resulting in low Ni and Co intake despite their higher abundances.
Databáze: OpenAIRE
Externí odkaz: